Cenozoic Volcanism and Crustal Evolution in Northern Mexico:Integrated Studies of Volcanic Rocks and Xenoliths

墨西哥北部新生代火山活动与地壳演化:火山岩与捕虏体的综合研究

• 批准号: 9105149
• 负责人: Kenneth Cameron
• 金额: $ 8.5万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-06-01 至 1994-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9105149&HistoricalAwards=false
• 关键词: Cenozoic; Volcanism; Crustal; Evolution; Northern

This project is to study new xenolith localities recently found in the late Cenozoic Camargo basalt field, and to continue research on mid-Cenozoic volcanic rocks. Some of the new sites have crustal xenolith suites containing mafic hornblende granulites and mafic igneous cumulates, that may represent different levels of the crust. The objective is to construct the best constrained model possible for the evolution of continental volcanic rocks. This model will be based on the volcanic rocks, contemporaneous cumulates, wall rocks, and mantle xenoliths. This project will test how successful current mathematical models are in reproducing the isotopic, major-element, and trace-element chemistries of the various rock types.

该项目是研究最近在Cenozoic Camargo玄武岩领域发现的新的异种石位置，并继续研究中期的火山岩。 一些新地点具有包含镁铁质角闪烁颗粒和镁铁质火成岩累积的地壳异种石套件，这可能代表了地壳的不同水平。 目的是为大陆火山岩的演变构建可能的最佳约束模型。 该模型将基于火山岩，同时代的累积，墙壁和地幔异种石。 该项目将测试当前的数学模型在繁殖各种岩石类型的同位素，主要元素和痕量元素化学方面的成功。